/* ============================================
   黑丝 - 原创样式表
   品牌色系：甜心粉 #FF6B9D / 深玫红 #C44569 / 暖金 #F8B500
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#2D2D3A;background:#FFF8FA;line-height:1.8;overflow-x:hidden}
a{color:#C44569;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B9D}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.4;color:#1A1A2E}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-padding{padding:70px 0}

/* === 头部导航 === */
.site-header{background:#fff;box-shadow:0 2px 20px rgba(196,69,105,.08);position:sticky;top:0;z-index:1000;transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 30px rgba(196,69,105,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:45px;width:auto}
.logo-text{font-size:22px;font-weight:800;background:linear-gradient(135deg,#FF6B9D,#C44569);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:0 16px;height:70px;display:flex;align-items:center;font-size:15px;color:#2D2D3A;font-weight:500;position:relative;transition:all .3s}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background:linear-gradient(90deg,#FF6B9D,#C44569);border-radius:2px;transition:width .3s}
.main-nav a:hover,.main-nav a.active{color:#C44569}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px}
.mobile-menu-btn span{display:block;width:24px;height:2px;background:#2D2D3A;margin:5px 0;transition:all .3s;border-radius:2px}

/* === 搜索框 === */
.search-bar{background:linear-gradient(135deg,#FFF0F5,#FFF8FA);padding:12px 0;border-bottom:1px solid rgba(255,107,157,.1)}
.search-wrap{max-width:600px;margin:0 auto;position:relative}
.search-wrap input{width:100%;padding:12px 50px 12px 20px;border:2px solid rgba(255,107,157,.3);border-radius:25px;font-size:14px;background:#fff;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#FF6B9D}
.search-wrap input::placeholder{color:#999}
.search-btn{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:38px;height:38px;border:none;background:linear-gradient(135deg,#FF6B9D,#C44569);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .3s}
.search-btn:hover{transform:translateY(-50%) scale(1.05)}
.search-btn svg{width:18px;height:18px;fill:#fff}

/* === Hero Banner === */
.hero-section{position:relative;height:520px;overflow:hidden;background:#1A1A2E}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.65)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,46,.7),rgba(196,69,105,.4))}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:650px}
.hero-tag{display:inline-block;background:rgba(255,107,157,.25);backdrop-filter:blur(10px);padding:6px 18px;border-radius:20px;font-size:13px;margin-bottom:18px;border:1px solid rgba(255,255,255,.2)}
.hero-content h1{font-size:42px;font-weight:900;margin-bottom:16px;line-height:1.3;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.hero-content h1 span{color:#F8B500}
.hero-desc{font-size:17px;opacity:.9;margin-bottom:28px;line-height:1.7}
.hero-btns{display:flex;gap:15px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:13px 32px;background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff;border-radius:30px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(255,107,157,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 25px rgba(255,107,157,.5);color:#fff}
.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:13px 32px;background:transparent;color:#fff;border:2px solid rgba(255,255,255,.5);border-radius:30px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;color:#fff}

/* === 统计数据 === */
.stats-bar{background:#fff;padding:25px 0;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-item .stat-num{font-size:32px;font-weight:900;background:linear-gradient(135deg,#FF6B9D,#C44569);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .stat-label{font-size:14px;color:#6B6B80;margin-top:4px}

/* === 区块标题 === */
.section-header{text-align:center;margin-bottom:45px}
.section-header .section-tag{display:inline-block;background:linear-gradient(135deg,rgba(255,107,157,.12),rgba(196,69,105,.08));color:#C44569;padding:5px 16px;border-radius:15px;font-size:13px;font-weight:600;margin-bottom:12px}
.section-header h2{font-size:32px;margin-bottom:12px}
.section-header h2 span{background:linear-gradient(135deg,#FF6B9D,#C44569);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-header .section-desc{font-size:15px;color:#6B6B80;max-width:600px;margin:0 auto}

/* === 视频卡片 === */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.video-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(255,107,157,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(255,107,157,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .4s;box-shadow:0 4px 20px rgba(255,107,157,.5)}
.video-card:hover .video-play-btn{opacity:1}
.video-play-btn svg{width:22px;height:22px;fill:#fff;margin-left:3px}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.75);color:#fff;padding:3px 8px;border-radius:4px;font-size:12px}
.video-info{padding:16px}
.video-info h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.video-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#999}
.video-meta .views{display:flex;align-items:center;gap:4px}
.video-meta .likes{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.video-tags span{background:linear-gradient(135deg,rgba(255,107,157,.1),rgba(196,69,105,.06));color:#C44569;padding:3px 10px;border-radius:10px;font-size:12px}

/* === 影视传媒模块 === */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.service-card{background:#fff;border-radius:14px;padding:35px 25px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .4s;border:1px solid transparent}
.service-card:hover{border-color:rgba(255,107,157,.3);transform:translateY(-5px);box-shadow:0 10px 35px rgba(255,107,157,.12)}
.service-icon{width:65px;height:65px;margin:0 auto 18px;background:linear-gradient(135deg,rgba(255,107,157,.15),rgba(196,69,105,.08));border-radius:16px;display:flex;align-items:center;justify-content:center;transition:all .3s}
.service-card:hover .service-icon{background:linear-gradient(135deg,#FF6B9D,#C44569)}
.service-icon svg{width:30px;height:30px;fill:#C44569;transition:fill .3s}
.service-card:hover .service-icon svg{fill:#fff}
.service-card h3{font-size:18px;margin-bottom:10px}
.service-card p{font-size:14px;color:#6B6B80;line-height:1.7}

/* === 娱乐专区 === */
.entertainment-section{background:linear-gradient(135deg,#1A1A2E,#2D1B3D)}
.entertainment-section .section-header h2,.entertainment-section .section-header .section-desc{color:#fff}
.entertainment-section .section-header .section-desc{opacity:.8}
.ent-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ent-card{border-radius:14px;overflow:hidden;position:relative;padding-top:130%;cursor:pointer}
.ent-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ent-card:hover img{transform:scale(1.1)}
.ent-card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.8) 0%,transparent 60%);z-index:1}
.ent-card-info{position:absolute;bottom:0;left:0;right:0;padding:20px;z-index:2;color:#fff}
.ent-card-info h4{font-size:16px;margin-bottom:6px}
.ent-card-info p{font-size:13px;opacity:.8}
.ent-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:50px;height:50px;background:rgba(255,107,157,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:2;opacity:0;transition:all .4s}
.ent-card:hover .ent-play{opacity:1}
.ent-play svg{width:20px;height:20px;fill:#fff;margin-left:2px}

/* === AI赋能 === */
.ai-section{background:linear-gradient(135deg,#FFF0F5,#FFF8FA)}
.ai-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:center}
.ai-image{border-radius:16px;overflow:hidden;box-shadow:0 10px 40px rgba(0,0,0,.1)}
.ai-image img{width:100%;display:block}
.ai-features{display:flex;flex-direction:column;gap:22px}
.ai-feature-item{display:flex;gap:16px;padding:20px;background:#fff;border-radius:12px;box-shadow:0 2px 15px rgba(0,0,0,.04);transition:all .3s}
.ai-feature-item:hover{box-shadow:0 6px 25px rgba(255,107,157,.12);transform:translateX(5px)}
.ai-feature-icon{flex-shrink:0;width:48px;height:48px;background:linear-gradient(135deg,#FF6B9D,#C44569);border-radius:12px;display:flex;align-items:center;justify-content:center}
.ai-feature-icon svg{width:24px;height:24px;fill:#fff}
.ai-feature-text h4{font-size:16px;margin-bottom:5px}
.ai-feature-text p{font-size:14px;color:#6B6B80}

/* === 社区功能 === */
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px}
.community-card{display:flex;gap:20px;background:#fff;border-radius:14px;padding:25px;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .3s}
.community-card:hover{box-shadow:0 8px 30px rgba(255,107,157,.12);transform:translateY(-3px)}
.community-card-img{flex-shrink:0;width:120px;height:120px;border-radius:12px;overflow:hidden}
.community-card-img img{width:100%;height:100%;object-fit:cover}
.community-card-content h4{font-size:17px;margin-bottom:8px}
.community-card-content p{font-size:14px;color:#6B6B80;line-height:1.7}
.community-card-content .card-tag{display:inline-block;background:linear-gradient(135deg,rgba(255,107,157,.12),rgba(196,69,105,.06));color:#C44569;padding:3px 12px;border-radius:10px;font-size:12px;margin-top:8px}

/* === 专家团队 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.expert-card{background:#fff;border-radius:14px;padding:30px 20px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .4s}
.expert-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(255,107,157,.15)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid rgba(255,107,157,.2);transition:border-color .3s}
.expert-card:hover .expert-avatar{border-color:#FF6B9D}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:17px;margin-bottom:4px}
.expert-card .expert-title{font-size:13px;color:#C44569;margin-bottom:10px}
.expert-card p{font-size:13px;color:#6B6B80;line-height:1.6;margin-bottom:14px}
.expert-links{display:flex;justify-content:center;gap:10px}
.expert-links a{padding:6px 14px;border-radius:20px;font-size:12px;font-weight:600;transition:all .3s}
.expert-links .btn-contact{background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff}
.expert-links .btn-contact:hover{box-shadow:0 4px 15px rgba(255,107,157,.4)}
.expert-links .btn-works{border:1px solid #C44569;color:#C44569}
.expert-links .btn-works:hover{background:#C44569;color:#fff}

/* === 合作品牌 === */
.partners-section{background:#fff}
.partners-img{border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06)}
.partners-img img{width:100%;display:block;filter:grayscale(.3);transition:filter .3s}
.partners-img:hover img{filter:grayscale(0)}

/* === 用户评价 === */
.reviews-section{background:linear-gradient(135deg,#FFF0F5,#FFF8FA)}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px}
.review-card{background:#fff;border-radius:14px;padding:28px;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .3s}
.review-card:hover{box-shadow:0 8px 30px rgba(255,107,157,.12)}
.review-header{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#C44569);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.review-user h5{font-size:15px}
.review-user span{font-size:12px;color:#999}
.review-stars{color:#F8B500;font-size:14px;letter-spacing:2px;margin-bottom:10px}
.review-card p{font-size:14px;color:#6B6B80;line-height:1.7}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:14px;box-shadow:0 2px 12px rgba(0,0,0,.04);overflow:hidden}
.faq-question{padding:20px 25px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;font-size:15px;transition:background .3s}
.faq-question:hover{background:rgba(255,107,157,.04)}
.faq-question .faq-toggle{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,rgba(255,107,157,.12),rgba(196,69,105,.06));display:flex;align-items:center;justify-content:center;transition:all .3s;flex-shrink:0}
.faq-item.active .faq-toggle{background:linear-gradient(135deg,#FF6B9D,#C44569);transform:rotate(45deg)}
.faq-toggle svg{width:14px;height:14px;fill:#C44569;transition:fill .3s}
.faq-item.active .faq-toggle svg{fill:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 25px}
.faq-item.active .faq-answer{max-height:300px;padding:0 25px 20px}
.faq-answer p{font-size:14px;color:#6B6B80;line-height:1.8}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.contact-card{background:#fff;border-radius:14px;padding:30px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.contact-card h4{font-size:17px;margin-bottom:14px}
.contact-card p{font-size:14px;color:#6B6B80;line-height:1.8}
.contact-card .contact-icon{width:55px;height:55px;margin:0 auto 16px;background:linear-gradient(135deg,rgba(255,107,157,.12),rgba(196,69,105,.06));border-radius:14px;display:flex;align-items:center;justify-content:center}
.contact-card .contact-icon svg{width:26px;height:26px;fill:#C44569}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.howto-step{text-align:center;padding:25px 15px;background:#fff;border-radius:14px;box-shadow:0 4px 20px rgba(0,0,0,.05);position:relative}
.howto-step .step-num{width:40px;height:40px;background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin:0 auto 14px}
.howto-step h4{font-size:15px;margin-bottom:8px}
.howto-step p{font-size:13px;color:#6B6B80}

/* === 页脚 === */
.site-footer{background:#1A1A2E;color:#fff;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo-wrap{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo-wrap img{border-radius:8px}
.footer-brand .logo-text-footer{font-size:22px;font-weight:800;background:linear-gradient(135deg,#FF6B9D,#F8B500);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7;margin-bottom:18px}
.footer-qr{display:flex;gap:20px}
.footer-qr-item{text-align:center}
.footer-qr-item img{width:100px;height:100px;border-radius:8px;margin-bottom:6px}
.footer-qr-item span{font-size:11px;color:rgba(255,255,255,.5)}
.footer-col h5{font-size:16px;margin-bottom:18px;color:#fff}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.6);padding:5px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B9D}
.footer-bottom{padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom .update-time{font-size:13px;color:rgba(255,255,255,.4)}

/* === 社交分享 === */
.share-bar{display:flex;gap:10px;margin-top:18px}
.share-btn{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s;cursor:pointer}
.share-btn.wechat{background:rgba(7,193,96,.15);color:#07C160}
.share-btn.weibo{background:rgba(230,73,45,.15);color:#E6492D}
.share-btn.douyin{background:rgba(0,0,0,.1);color:#fff}
.share-btn.bilibili{background:rgba(0,174,236,.15);color:#00AEEC}
.share-btn:hover{transform:scale(1.15)}
.share-btn svg{width:18px;height:18px}

/* === 面包屑 === */
.breadcrumb{padding:15px 0;font-size:13px;color:#999}
.breadcrumb a{color:#C44569}
.breadcrumb span{margin:0 8px;color:#ccc}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#1A1A2E,#2D1B3D);padding:60px 0;color:#fff;text-align:center}
.page-hero h1{font-size:36px;color:#fff;margin-bottom:10px}
.page-hero p{font-size:16px;opacity:.8}
.page-content{padding:50px 0}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}

/* === 懒加载 === */
.lazy-img{opacity:0;transition:opacity .5s}
.lazy-img.loaded{opacity:1}

/* === 返回顶部 === */
.back-to-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:linear-gradient(135deg,#FF6B9D,#C44569);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;z-index:999;box-shadow:0 4px 15px rgba(255,107,157,.4)}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}
.back-to-top svg{width:20px;height:20px;fill:#fff}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid,.service-grid{grid-template-columns:repeat(2,1fr)}
  .ent-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .ai-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{height:60px}
  .main-nav{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;flex-direction:column;box-shadow:0 10px 30px rgba(0,0,0,.1);padding:10px 0}
  .main-nav.open{display:flex}
  .main-nav a{height:auto;padding:12px 20px;width:100%}
  .main-nav a::after{display:none}
  .mobile-menu-btn{display:block}
  .hero-section{height:400px}
  .hero-content h1{font-size:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .video-grid,.service-grid,.community-grid,.review-grid,.contact-grid{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section-header h2{font-size:24px}
  .container{padding:0 15px}
  .section-padding{padding:45px 0}
  .howto-steps{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:480px){
  .hero-section{height:350px}
  .hero-content h1{font-size:24px}
  .hero-btns{flex-direction:column}
  .btn-primary,.btn-outline{width:100%;justify-content:center}
  .ent-grid{grid-template-columns:1fr}
}